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Auxiliary power take-off assembly

a technology of auxiliary power and take-off assembly, which is applied in the direction of auxiliary drives, control devices, vehicle components, etc., can solve the problem that the driven shaft itself cannot be decoupled, and achieve the effect of improving and simplifying the structure and minimizing the installation effor

Active Publication Date: 2021-04-29
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes an auxiliary power take-off assembly for a motor vehicle transmission. The assembly includes a torque converter, a driving chain, and a shifting element that connects to the output of the chain. The assembly is integrated into the transmission housing and can be easily accessed. This design makes it easier to install and remove components. The technical effect of this patent is to provide an improved method for extracting power from a motor vehicle transmission.

Problems solved by technology

Thus, the driven shaft itself cannot be decoupled.

Method used

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  • Auxiliary power take-off assembly

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Embodiment Construction

[0017]The sole FIGURE shows the auxiliary power take-off assembly according to the invention, which is arranged at the transmission input downstream from a torque converter 2. The torque converter 2 is fitted in such manner that its pump wheel is driven by a drive unit and is permanently connected to the pump shaft 7. The driveshaft 5 of the auxiliary power take-off assembly 1 is connected to the pump shaft 7. The drive input element 6 of the auxiliary power take-off assembly 1 is fitted on the driveshaft 5 of the auxiliary power take-off assembly 1. In this case the drive input element 6 is not coupled shiftably to the driveshaft 5, and transmits torque directly to a drive output element 4 mounted on a drive output shaft 3. In this example an additional transmission member in the transmission chain is dispensed with, in order to minimize the number of components. However, an intermediate element for transmitting torque between the drive input element 6 and the drive output element ...

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Abstract

An auxiliary power take-off assembly in a motor vehicle transmission having a torque converter, transmission input and output with a drive shaft on the transmission input. The drive shaft is permanently connected to a drive motor of the vehicle by a pump shaft of the torque converter, a transmission output shaft at the transmission output and a transmission chain having drive input and output elements. A transmission power take-off shaft on the transmission output and a transmission chain having at least a drive element and a power take-off element of which the power take-off element can be connected to an additional unit to be driven, and having a switching element. The power take-off element is arranged on a power take-off shaft and can be connected to the power take-off shaft via the switching element, which is arranged to act between power take-off shaft and the power take-off element.

Description

[0001]This application is a National Stage completion of PCT / EP2019 / 054781 filed Feb. 27, 2019, which claims priority from German patent application serial no. 10 2018 204 909.2 filed Mar. 29, 2018.FIELD OF THE INVENTION[0002]The present invention relates to an auxiliary power take-off assembly and a transmission with an auxiliary power take-off assembly.BACKGROUND OF THE INVENTION[0003]Vehicle transmissions in utility vehicles often comprise an auxiliary power take-off assembly by means of which various types of auxiliary aggregates in the vehicle can be driven. This applies in equal measure to transmissions with a friction disk clutch and a vehicle transmission equipped with a torque converter.[0004]Auxiliary power take-off assemblies are used in particular in buses, trucks, construction machinery, agricultural vehicles or special vehicles.[0005]Auxiliary power take-off assemblies are available in drive-dependent, clutch-dependent or motor-dependent versions. Drive-dependent auxil...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B60K17/28B60K25/06B60K17/22
CPCB60K17/28B60K2025/065B60K17/22B60K25/06
Inventor EPPLE, MICHAELMESSMER, MATTHIASSAUTER, FRANKROTHER, SYLVAHOLDER, MARIO
Owner ZF FRIEDRICHSHAFEN AG
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